BWI to SEA from $187 in economy – flightdeals.net

Home Premium Fare Deals About

American Airlines

AAAmerican Airlines

Round Trip•Economy

Baltimore/Washington International Thurgood Marshall Ai

Baltimore-Washington, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$456 USD

-59%$187 USD

Verified about 12 hours ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$603 1$468 2$397 3$417 4$442 5$397 6$462 7$417 8$397 9$397 10$417 11$513 12$417 13$482 14$452 15$486 16$506 17$437 18$648 19$584 20$482 21$513 22$488 23$628 24$437 25$452 26$604 27$845 28$838 29$628 30$543 31$543 1$554 2$668 3$773

Rare Availability

8% of dates checked are available within 10% of the lowest price

Sunday, December 13th, 2026

5 round-trip options

Returning

Fri, Dec 18, 2026•5 Day Trip

$619 USD

Returning

Sat, Dec 19, 2026•6 Day Trip

$577 USD

Returning

Sun, Dec 20, 2026•7 Day Trip

$686 USD

Returning

Thu, Dec 24, 2026•11 Day Trip

$482 USD

Returning

Fri, Dec 25, 2026•12 Day Trip

$497 USD